Zen Insight: Emptiness: The Cup is Empty, Long Live the Cup!
"There was once a man who swept roads for a living. One morning he was sitting down with a friend and said 'You know I've had this broom for 17 years, this broom is my best and oldest companion'. The friend was amazed, '17 Years? That's a long time!'. The road sweeper explained, 'Yes it is! I've only changed the handle 8 times and the brush 5 times.'."
Also of interest is this somewhat academic discussion of what Inherent Existence means.